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The Netfilter Userspace Logging Daemon

ulogd is a daemon that listens for Netlink packets generated by iptables's
ULOG target. Basically, it's a replacement for syslog for logging packets,
and does a much better job - it logs to files, pcap files, MySQL, PostgreSQL,
SQLite 3 and soon will be able to log remotely.

MySQL, PostgreSQL and SQLite 3 support is in separate packages, called
ulogd-mysql, ulogd-pgsql and ulogd-sqlite3 respectively. pcap file support
is in package called ulogd-pcap.